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(No Model.)

H. 0. JOHNSON. SLED BRAKE.

No. 392,341. I Patented Nov. 6, 1888.

WITNESS/5 lNl/EIVTOH: :g 9 n By vu/ww nrromvsys.

UNITED STATES PATENT EFICE.

' HANS O. JOHNSON, OF RHINELANDER, WISCONSIN, ASSIGNOR TO JOHNSONBROTHERS & 00., OF SAME PLACE.

SLED-BRAKE.

SPECIFICATION forming partof Letters Patent No. 392,341, dated November6, 1888.

7 Application filed July 23, 1888. Serial No.2B0,734. (No model.)

T at whom it may concern.-

Be it known that I, HANS O. J oHNsoN, of Rhinelander, in the countyof'Oneida and State of Wisconsin, have inventeda new and ImprovedSelf-Adjusting Sled-Brake, of which the following is a full, clear, andexact description.

This invention relates to sled-brakes, and has forits object to provideasled-brake which will be effective and durable.

The invention consists in a sled-brake constructed and arrangedashereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 isa side view of a sled-fran1e and pole with invention applied.Fig. 2 is a plan view thereof, and Fig. 3 is a side view showing brakeraised out of position for use.

In carrying out this invention a pair of dogs, 1, are pivoted betweentheir ends to brackets 2 on the inside of the runners 3, the upperportion of the dogs 1 projecting above the runners 3, and their lowercurved portions normally extending down in a rearward direction towardthe bottom of the runners, so that with a slight backward movement ofthe upper portion of the dogs the points of the lower portion will beprojected beneath the runners. The dogs 1 are operated by means ofdiagonal rods 4, having their forked ends 5 pivoted to the upper ends ofthe dogs 1, and their forward ends engaging a forked piece, 6, connectedby a detachable pivot-pin, 7, to the upper end of a lever, 8, pivoted toa bracket, 9, on the sledpole 10.

The lower end of the lever 8 is pivoted to the forked end 11 of ahorizontal rod, 12, the other forked end, 13, of the latter beingpivoted to the lower end of a. lever, 14, pivoted in a slot, 15, in poleand having a curved upper end, 16. The latter is'located in line withthe neck-yoke, so that when the parts are in the position shown in Fig.1 any rearward pull on the neck-yoke which bears against the curved end16 of lever 14 will cause the curved end 16 to be forced back, therebydrawing rod 12 forward, and through the move ment thereby communicatedto lever 8 and rods 4 moving the upper ends of dogs 1 backward andforcing the lower ends into the snow.

In this way the sled will be easily and firmly braked either on a levelsurface or going downhill. When the brake is not required for useas, forexample, in yards Where there is much backingthe dogs may be moved outof the Way by withdrawing pin 7 from forked piece 6 and lever 8 andinserting it in a hole, 17, in 6 bracket 9. The forked piece 6 may thenbe drawn forward and hooked over lever 8, thereby holding dogs 1 up outof the way, as shown in Fig. 3.

By means of a sled-brake constructed and operated as herein set forth avery serviceable and effective sled-brake is provided.

Having thus described my invention. what I claim as new, and desire tosecure by Letters Patent, is

The combination, with a sled and its pole, of the dogs 1, pivoted to therunners, the diagonal rods 4, having their forked ends 5 pivoted to theupper ends of the dogs and provided with the forked piece 6, the lever8, piv- 75 oted to the rear end of the pole, and to which the forkedpiece 6 is pivoted, the lever 14, pivoted to the forward end of the poleand provided with the curved upper end, 16, and the rod 12, pivoted tothe lower ends of the levers 8o 8 and 14, substantially as herein shownand described.

HANS C. JOHNSON.

\Vitnesses:

E. 0. BROWN, (1120. W. MAsoN.

